Car-derailing device.



T. IVICWATTERS. CAR DERMUNG nEvmyE. APPLICATION FILED FEB. I2, i915.

atented May 30,1916.

WITNESSES THOMAS MCWATTERS, OF GLASSPORT, PENNSYLVANIA.

CAR-DERAILING DTEVIIGE.l

Specification of Letters Patent.

Patented May 3U, 19106.

Application led February 12, 1915. Serial No. 7,697.

To all whom 'it may concern Be it known that I, THOMAS MGWATTERS, asubject of the King of Great Britain, residing at Glassport, in thecounty of Allegheny and State of Pennsylvania, have invented a new anduseful Improvement in Car-Derailing Devices, of which improvement thefollowing is a specification.

My invention relates to improvements in devices for derailing cars, andis particularly applicable for use in connection with coal trains.

Heretofore, so far as I am aware, there has been no efiicient devicecapable of derailing a train of coal cars when desirable to prevent theutter wreckage of the same.

In operating coal mines it is usual to load the coal upon a number ofcars which when connected in the usual manner form a long train. Notinfrequently these trains in descending inclined tracks get away fromcontrol and speed down the inclined tracks at such rate that when theycome in contact with abutments or other devices at the end of theinclined tracks, they telescope upon one another, occasioning thewreckage of the entire train. iHours are consumed in clearing up thewreckage, during which the track is out of commission.

The object of my invention is to produce a device adapted to derail thecar to which it is attached within a very short distance and thusprevent the train from obtaining dangerous momentum. I accomplish thisobject by means of the device hereinafter more specifically described,reference being had to the accompanying drawings, in which- Figure 1 isa side elevation of a coal mine car with my improved derailer attachedthereto. Fig. 2 is a fragmentary sectional view of a section of the carand derailer on line 1 1 of Fig. 1. Fig. 3 is a plan View of thederailer. Fig. 4 is a side elevation of the same. Fig. 5 is a bottomplan view of the portion of the derailer in contact with the rail. Fig.6 is a left end view of the device as shown in Fig. 3. Fig. 7 is a rightend view of the same. Fig. 8 is a plan view of the angle support for thederailer.

Fig. 9 is an end elevation .of the same showing the link or arm wherebythe derailer is attached to the car. Fig. 10 is a side elevation of thesame. Fig. 11 is a plan view of mine track showing cars in the act ofbeing derailed by the device.

Referring to the drawings, l, is a coal mine car of the usual andordinary type, adapted to be mounted upon rails, 2. A derailing devicecomprising a block, 3, is preferably formed of cast steel, as shown inFig. 3 and has its surface adjacent to the rail preferably provided withserrations, 4f, as shown in Figs. l and 5. The upper portion or top ofsaid block is provided with an inclined groove, 5, in which the flange,6, of wheel, 7, is adapted to engage when the derailing device is in theposition shown in dotted lines in Fig. 1. When in this lposition, theflange of the car wheel enters said groove and is guided or directedfrom the rail as shown in Fig. 11.

8, is a link or arm pivotally connected to the block, 3, of thederailing device, the upper end terminating in a hook, 9, adapted toengage over a pin, 10, secured upon the side of the car.

l1, is a prong which is pivotally secured upon the rear end of theblock, 3, of the derailer, and is adapted to engage in the surface ofthe earth as soon as the oar attempts nto move backward in the event ofa break in the cable. When this occurs, the link is thrown upwardlythereby disengaging the hook, 9, from the pin, l0. The device when sodisengaged rests upon the rail in the path of the car, the Harige of thewheel entering the groove, 5, derailing the car and stopping the trainbefore the same has traveled any great distance or acquired greatmomentum, thus saving the train from complete destruction, whichnormally occurs upon the happening of such accident.

Having described my invention, what I claim and desire to secure byLetters Patent, is

l. In a device for derailing coal cars, the combination of a car, aderailing device detachably secured to said car and adapted to traveltherewith on vthe rail, the said derailing device having a prongpvotally secured In testimony whereof, I have hereunto to the rear endthereof. Y Y signed my name in the presence of two sub- 2. Inardevceforjdemiling coal Cars, the scrbng Witnesses. combination .of a ear, aderailing device de-` THOMAS MCWATTERS. l taehably secured theretohaving on its upper In the presence ofsurface a groove and having aprong pvot-V JOHN H. RONEY, ally Secured to the rear endrthereof. JAMESC. HERRON.

Copies o! this patent may he obtained for ve cents each, by addressingthe Commissioner of Patents,

Washington, D. C.

